Cyanuric acid
- Formula: C3H3N3O3
- Molecular weight: 129.0742
- IUPAC Standard InChI: InChI=1S/C3H3N3O3/c7-1-4-2(8)6-3(9)5-1/h(H3,4,5,6,7,8,9)
- IUPAC Standard InChIKey: ZFSLODLOARCGLH-UHFFFAOYSA-N
- CAS Registry Number: 108-80-5
- Chemical structure:
This structure is also available as a 2d Mol file or as a computed 3d SD file
The 3d structure may be viewed using Java or Javascript. - Species with the same structure:
- Other names: 1,3,5-Triazine-2,4,6(1H,3H,5H)-trione; s-Triazine-2,4,6(1H,3H,5H)-trione; s-Triazine-2,4,6-triol; s-Triazinetriol; Isocyanuric acid; Pseudocyanuric acid; Tricyanic acid; Trihydroxycyanidine; 2,4,6-Trihydroxy-1,3,5-triazine; 1,3,5-Triazine-2,4,6-triol; s-2,4,6-Triazinetriol; sym-Triazinetriol; Kyselina kyanurova; 2,4,6-Trihydroxytriazine; 2,4,6-Trihydroxy-S-triazine; 2,4,6-Trioxohexahydro-1,3,5-triazine; 5-Azabarbituric acid; 2,4,6-Triazinetrione; Isocyanurate acid; s-Triazine-2,4,6-trione; s-Triazinetrione; Tricarbimide; NSC 6284
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Condensed phase thermochemistry data
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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data compiled as indicated in comments:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DH - Eugene S. Domalski and Elizabeth D. Hearing
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔfH°solid | -703.5 ± 1.5 | kJ/mol | Ccb | Kozyro, Kabo, et al., 1992 | ALS |
| ΔfH°solid | -660. ± 2. | kJ/mol | Ccb | Selivanov, Karlik, et al., 1973 | ALS |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔcH°solid | -905.8 ± 1.5 | kJ/mol | Ccb | Kozyro, Kabo, et al., 1992 | ALS |
| ΔcH°solid | -949. ± 2. | kJ/mol | Ccb | Selivanov, Karlik, et al., 1973 | ALS |
| Quantity | Value | Units | Method | Reference | Comment |
| S°solid,1 bar | 142.2 | J/mol*K | N/A | Kozyro, Kabo, et al., 1992, 2 | DH |
Constant pressure heat capacity of solid
| Cp,solid (J/mol*K) | Temperature (K) | Reference | Comment |
|---|---|---|---|
| 130.0 | 298.15 | Kozyro, Kabo, et al., 1992, 2 | T = 5 to 330 K.; DH |
| 133.63 | 300. | DeWit, DeKruif, et al., 1983 | T = 90 to 340 K. Cp = 20.63 + 0.3758 (T/K) J/mol*K (90 to 340 K).; DH |
References
Go To: Top, Condensed phase thermochemistry data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Kozyro, Kabo, et al., 1992
Kozyro, A.A.; Kabo, G.Ya.; Soldatova, T.V.; Simirskii, V.V.; Gogolinskii, V.I.; Krasulin, A.P.; Dudarevich, N.M.,
Thermodynamic properties of cyanuric acid,
Russ. J. Phys. Chem. (Engl. Transl.), 1992, 66, 1374-1377. [all data]
Selivanov, Karlik, et al., 1973
Selivanov, V.D.; Karlik, V.M.; Zagranicnyi, V.I.,
Standard enthalpies of formation ammeline, ammelide, melem, and melon,
Russ. J. Phys. Chem. (Engl. Transl.), 1973, 47, 272. [all data]
Kozyro, Kabo, et al., 1992, 2
Kozyro, A.A.; Kabo, G.Ya.; Soldatova, T.V.; Simirskii, V.V.; Gogolinskii, V.I.; Krasulin, A.P.; Dudarevich, N.M.,
Thermodynamic properties of cyanuric acid,
Zhur. Fiz. Khim., 1992, 66(10), 2583-2590. [all data]
DeWit, DeKruif, et al., 1983
DeWit, H.G.M.; DeKruif, C.G.; Van Miltenburg, J.C.,
Thermodynamic properties of molecular organic crystals containing organic crystals containing nitrogen, oxygen, and sulfur. II. Molar heat capacities of eight compounds by adiabatic calorimetry,
J. Chem. Thermodynam., 1983, 15, 891-902. [all data]
Notes
Go To: Top, Condensed phase thermochemistry data, References
- Symbols used in this document:
Cp,solid Constant pressure heat capacity of solid S°solid,1 bar Entropy of solid at standard conditions (1 bar) ΔcH°solid Enthalpy of combustion of solid at standard conditions ΔfH°solid Enthalpy of formation of solid at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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